Ventilation and reaeration system with no power for treating land of sewage

Abstract

The method is install a perforated gas pipe in soil infiltration layer between water distributing pipe and water collecting pipe installed at ground with sewage, to cover high polymer hydrophobic poromeric film on outside surface of the perforated gas pipe to form a gas pipe which gas can escape but water cant, air pipe connected to ends of the gas pipe is connected with pumping fan on the earth's surface and direct interliked to air. 'Gas-liquid-gas-solid' mass transfer way is changed to 'gas-solid' by this invention to increase mass transfer efficiency and oxide effect from air to soil.

Description

technical field

[0001] The invention relates to a non-powered ventilation and reoxygenation system for sewage land treatment, which utilizes natural wind energy to automatically replace and circulate the air in the ventilation pipe of the treatment system, and utilizes the polymer hydrophobic gas-permeable membrane coated on the outer surface of the perforated ventilation pipe, Improve the mass transfer efficiency and reoxygenation effect from air to soil. The invention belongs to the technical field of environmental engineering sewage treatment. technical background

[0002] With the rapid development of my country's economy, water eutrophication caused by non-point source pollution in the Taihu Lake Basin, the Three Gorges Basin, and the Bohai Bay Basin has become increasingly severe, and has gradually become a social problem that affects economic development. Pay attention to. The "Ninth Five-Year" and "Tenth Five-Year" national "863" plans have invested a lot of money i...

Images